fix: disable signal-safe stderr logging on PlayStation

[tustanivsky]

SENTRY_SIGNAL_SAFE_LOG writes to stderr with write(). On PlayStation, doing that from the coredump handler crashes the handler (Debug handler crashed … 0xa002030a). When that happens, the crash dump is uploaded without Sentry's userdata, so the event has no SDK context: no release, tags, breadcrumbs or attachments.

This became visible in 0.17.0. #2112 added sentry__invoke_on_crash, which logs before calling the hook, and the PlayStation backend now calls it from the coredump handler. Any app with an on_crash callback, including every Unreal Engine game, loses its crash context.

This PR makes the macro a no-op on SENTRY_PLATFORM_PS, the same way it already is on other platforms that are neither Unix nor Windows. The PlayStation backend already turns off regular logging inside the handler for the same reason.

Verified on a PS5 devkit with sentry-playstation's integration tests, using an app that registers on_crash: crash-capture fails on 0.17.0 and passes with this change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.44%. Comparing base (b01cd40) to head (02f8290).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2133   +/-   ##
=======================================
  Coverage   75.44%   75.44%           
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  Files         103      103           
  Lines       28026    28026           
  Branches     5114     5114           
=======================================
+ Hits        21143    21145    +2     
+ Misses       5549     5547    -2     
  Partials     1334     1334           

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